RE: [Xen-users] xen blocked state

["Steffen Heil" <lists@xxxxxxxxxxxxxxx>]

Hi

> Just curious, what does "blocked" really mean?  Is  r 
> "running" a state reserved for Dom0 and not DomU.  I am using 
> SLES10, and I have noticed for quite awhile that when my 
> DomUs are running they are usually in the blocked state and 
> never in the running state, and my Dom0 is always in the 
> running state.  The Xen user guide, explains b as blocked but 
> doesn't really give any other detail.  Is there some other 
> doc that explains this more?

Your dom0 is always in "running" state?
How do you know?

Using xentop - thus running a software in dom0 - using the cpu for dom0 at
the very moment you get the dom list?
For sure, dom0 must be running. So, no running is not a state reserved for
dom0, domUs couldn't work at all then.
But the dom0 IS runnign at the very moment, xentop retrieves the list. 

blocked means the domains are waiting for something. Processing is blocked
due to the lack of something to do.
Blocked may be waiting for keystrokes of the user, movement of the mouse,
network packets to arrive maybe even hard drive access (xen-devs, that's
right?).

Regards,
  Steffen


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